JPH08173845A - Dust collecting element and its production - Google Patents

Abstract

PURPOSE: To hold the parallel spaces between dust collecting plates well by simple constitution and to make a dust collecting plate well compliant with the disposal specification. CONSTITUTION: Into a spacer 3 having recessed parts 2 in the longitudinal direction and high rigidity, dust collecting plates 1 are inserted through slits 4, and the ends of the dust collecting plates 1 face the inside of the recessed parts 2, and the plates 1 are adhered by an adhesive at a part of the recessed parts 2. Although the dust collecting plates 1 and the spacer 3 are formed of a paper material, the dust collecting plates 1 are held parallel at well controlled intervals in a state in which lateral dislocation of the dust collecting plates 1 is prevented to lower the whole production cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a dust collecting element used in an air cleaner and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a dust collecting element of this type is disclosed in Japanese Utility Model Laid-Open No. 60-31350 and as shown in FIG. The projections T, which are formed of a combustible material and are provided at both ends of each dust collecting plate P, are inserted into the slits S provided in the left and right side plates N, so that the parallel spacing therebetween is maintained. In this way, it is adapted to the disposable specification with a simple configuration.

Further, as shown in FIG. 10 of JP-A-5-261313 and as shown in FIG. 10, the dust collecting plate P has a convex portion A protruding into the gap between the dust collecting plates P and a slit B for receiving the plate thickness. A long comb-shaped spacer E is formed along the direction in which the spacers E are arranged, and the spacer E is interposed in the widthwise intermediate portion of the dust collecting plate P.

[0004]

However, even if the above spacer structure is combined to support both ends and the intermediate portion of the dust collecting plate P, the slit B of the comb-shaped spacer E is formed.
Since the dust collecting plate P is laterally displaced at the portion of, it is difficult to keep the entire element in a box shape. To prevent the lateral displacement, an adhesive may be embedded in each slit B of the comb-shaped spacer E, but it is difficult to inject the adhesive between the dust collecting plate P and the spacer E orthogonal to each other. There is a problem that the plate surface of the dust collecting plate P may be soiled with an adhesive, the structure is complicated as a whole, the cost is high, and there is a problem that it does not meet the disposable specifications.

The main object of the present invention is to provide a dust collecting element which can maintain a good parallel spacing between the dust collecting plates with a simple structure and which is suitable for a disposable specification.

[0006]

In order to achieve the above-mentioned object, the invention according to claim 1 is, as shown in FIG. 1, a plurality of dust collecting plates 1 arranged facing each other at intervals. In the dust element, a long spacer 3 having a recess 2 is formed along the longitudinal direction, and the spacer 3 has a width in the longitudinal direction for receiving the thickness of each dust collecting plate 1. A plurality of slits 4 that face the dust plate 1 to the recess 2 are provided, and the dust collecting plates 1 are inserted into the slits 4 and fixed to the recesses 2 with an adhesive.

According to a second aspect of the present invention, in the first aspect of the invention, in order to reduce the protrusion of the spacer 3 on the outer peripheral portion of the dust collecting plate 1, the spacer is provided at the insertion portion of the slit 4 in the dust collecting plate 1. A notch portion 5 for locating 3 on the inner side of the dust collecting plate 1 is provided.

According to a third aspect of the present invention, in the first or second aspect of the invention, as a preferred specific example of the spacer 3, the spacer 3 is a cylindrical spacer 31 surrounding the recess 2. did.

The invention according to claim 4 is, in the invention according to claim 1 or claim 2, as another preferred specific example of the spacer 3, as shown in FIGS.
The structure is a trough-shaped spacer 32 that opens one side of the recess 2 outward along the longitudinal direction of the spacer 3.

According to a fifth aspect of the present invention, in addition to the third or fourth aspect of the invention, the spacer 3 prevents the air passage from having a large resistance.
As shown in FIG. 5 or FIG. 6, the cross-sectional shape of the spacer 3 is tapered on the windward side.

According to a sixth aspect of the present invention, in addition to the invention according to any of the first to fifth aspects, the cost of the entire structure can be reduced and the entire combustion can be discarded easily, and the disposable type can be more satisfactorily adapted. To allow the dust collecting plate 1 and the spacer 3 to
Is made of a combustible material.

In order to make the bonding workability during manufacture particularly easy, the invention according to claim 7 is directed to a dust collecting element in which a plurality of dust collecting plates 1 are arranged facing each other at intervals as shown in FIG. In the manufacturing method, a long spacer 3 having a recess 2 is formed along the longitudinal direction, and the spacer 3 has a width in the longitudinal direction to accommodate the thickness of each dust collecting plate 1. A plurality of slits 4 that face the dust plate 1 to the recess 2 are provided, each dust collecting plate 1 is inserted into each of the slits 4, and then a fluid adhesive is poured into the recess 2 and then the flow We decided to fix the adhesive.

According to an eighth aspect of the invention, in the manufacturing method of the seventh aspect, the dust collecting plate 1 and the spacer 3 are made of a combustible material.

[0014]

In the first aspect of the invention, since the spacer 3 has the recess 2 along the longitudinal direction, the spacer 3 itself has high rigidity and is strong against bending deformation. When the dust collecting plate 1 is inserted into the slit 4 provided in the spacer 3, the dust collecting plate 1 faces the recess 2 and is fixed in the recess 2 by an adhesive. Since the adhesive is applied to the concave portion 2, the adhesion is easy and reliable, and the dust collecting plate 1 is less likely to be contaminated with the adhesive. In this way, each dust collecting plate 1 is attached to the spacer 3 having a high rigidity by itself even though it has a simple structure, and the dust collecting plate 1 is fixed by fixing the adhesive.
Can be prevented, and the parallel spacing of the dust collecting plates 1 can be favorably maintained.

According to the second aspect of the present invention, at the notch 5, the whole or a part of the spacer 3 enters the inside of the dust collecting plate 1, and the spacer 3 largely protrudes on the outer peripheral portion of the dust collecting plate 1. Can be reduced, and the entire configuration can be downsized.

In the invention according to claim 3, the cylindrical spacer 3
1, the rigidity can be further increased, and since the recess 2 in which the adhesive is interposed is surrounded by the cylindrical surface, the finish can be further improved.

In the invention according to claim 4, the gutter-shaped spacer 3
2, the rigidity can be made high, and since the recess 2 in which the adhesive intervenes is open, the adhered state can be confirmed and the connection can be ensured.

In the invention of claim 5, since the spacer 3 is tapered on the windward side, the air hitting the spacer 3 is guided to the leeward side with less resistance, and the interposition of the spacer 3 gives a large resistance to the air passage. Can be prevented.

In the invention according to claim 6, since the dust collecting plate 1 and the spacer 3 are formed of a combustible material, the whole can be formed at low cost, and when the dirt adheres due to long-term use, the whole is burned. It can be discarded and better adapted for single use specifications.

According to the seventh aspect of the present invention, by pouring the fluid adhesive into the recess 2, the adhesive can be spun between the plurality of dust collecting plates 1 and the spacers 3 at a time, and then the adhesive is applied. By fixing the agent, each dust collecting plate 1 can be firmly fixed to the spacer 3, and the workability of bonding during manufacturing can be particularly simplified.

In the invention of claim 8, since the dust collecting plate 1 and the spacer 3 are made of a combustible material, the whole can be formed at a low cost, and when the dirt adheres due to long-term use, the whole is burned. It can be discarded and better adapted for single use specifications.

[0022]

1 to 4, reference numeral 1 denotes a dust collecting plate made of a combustible material, which is made of electrically insulating paper having a thickness of several millimeters to several millimeters. The dust collecting plate 1 is
A large number of spacers 3 are provided and are arranged in parallel to each other with a plurality of spacers 3 arranged at the front and the rear in the air flow direction with a space therebetween. On the front and back of each dust collecting plate 1, a first electrode 11 connected to the positive or negative terminal of the high-voltage power source and a second electrode 1 of opposite polarity connected to the negative or positive terminal.
2 and 2 are provided every other sheet. Each of the electrodes 11 and 12 is formed by double-sided printing of a conductive paint, and the first electrode 11
The second electrode 12 and the second electrode 12 are slightly displaced in the air flow direction.

Thus, although not shown in the drawings, an ionizer arranged upstream in the direction of air flow ionizes the dirt particles in the air, and the ionized dirt particles are applied to the dust collecting plates 1 constituting the parallel plate electrodes. It is designed to be attracted by electrostatic force.

In the above construction, the spacer 3 is made of a flammable paper tube which is formed by spirally winding a cardboard core material in a cylindrical shape and has a cylindrical cavity formed in the center thereof along the longitudinal direction. It is formed by a long cylindrical spacer 31 having a place 2. Further, a plurality of semicircular slits 4 having a width for receiving the thickness of each dust collecting plate 1 and allowing the dust collecting plate 1 to face the recess 2 are provided in the longitudinal direction of the cylindrical spacer 31. Each dust collecting plate 1 is inserted into each slit 4 and fixed in the concave portion 2 with an adhesive 6. In addition, a spacer 3 is attached to a portion of each dust collecting plate 1 where the slit 4 is inserted.
A rectangular notch 5 is provided on the inner side of the.

In actual manufacturing, first, all the dust collecting plates 1 are inserted into the respective slits 4, and then,
From the end of the cylindrical spacer 31 to the recess 2 by the filling tool 7.
The fluid adhesive 6 is poured into the interior of the container, and then the fluid adhesive 6 is fixed. Fluid adhesive 6
For this, a hot-melt adhesive such as hot melt, a vinyl acetate adhesive, an epoxy adhesive, or the like is used.

By the way, in the above, the spacer 3 is formed in a cylindrical shape so that the air resistance can be reduced. However, in order to further reduce the air resistance, as shown in FIG. It is also preferable that the surface shape is an ellipse, and the major axis thereof is aligned with the flow direction of air to be interposed.

Further, in the above, the spacer 3 is formed in a cylindrical shape, but as shown in FIGS.
The groove end of the groove-shaped recess 2 may be formed by a gutter-shaped spacer 32 having a V-shape that opens outward along the longitudinal direction. In this case, in order to reduce the air resistance, the V-shaped top portion is arranged on the windward side.
The V-shaped leg portion is provided with a pair of slits 4, and the leeward side spacer 32 is provided with the slit 4 at the V-shaped top portion. The trough may have a V-shape, a U-shape, or a U-shape.

[0028]

According to the first aspect of the present invention, the slit 3 is formed in the spacer 3 having the recess 2 in the longitudinal direction to increase the rigidity.
Each dust collecting plate 1 is inserted and firmly supported through, and the lateral displacement of the dust collecting plate 1 is also prevented by the adhesion of the adhesive intervening in the recessed portion 2. The parallel spacing of the dust collecting plate 1 can be maintained well, and the dust collecting plate 1 can be well adapted to the disposable specification.

According to the second aspect of the present invention, the notch 5 can reduce the protrusion of the spacer 3 on the outer peripheral portion of the dust collecting plate 1 to a large extent, and the overall structure can be made compact.

According to the third aspect of the present invention, the cylindrical spacer 31 allows the rigidity to be further increased, and the recess 2 in which the adhesive is interposed is surrounded by the cylindrical surface.
The finish can be made even more beautiful.

According to the fourth aspect of the present invention, the gutter-shaped spacer 32 provides high rigidity, and since the recess 2 in which the adhesive intervenes is open, the adhered state can be confirmed. The binding can be ensured.

According to the fifth aspect of the present invention, the spacer 3 tapered on the windward side can prevent a large resistance from being applied to the air passage.

According to the sixth aspect of the present invention, since the dust collecting plate 1 and the spacer 3 are made of a combustible material, the whole structure can be formed at low cost, and if dirt is attached due to long-term use, the whole structure will be reduced. Can be burned to waste and better adapted to single use specifications.

According to the seventh aspect of the invention, by pouring the flowable adhesive into the recess 2, the adhesive can be spun between the plurality of dust collecting plates 1 and the spacers 3 at a time, and thereafter, By adhering the adhesive, the dust collecting plates 1 can be firmly fixed to the spacers 3, and the workability of bonding during manufacturing can be particularly simplified.

According to the invention as set forth in claim 8, since the dust collecting plate 1 and the spacer 3 are made of a combustible material, the whole structure can be formed at a low cost. Can be burned to waste and better adapted to single use specifications.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a first embodiment of a dust collecting element of the present invention.

FIG. 2 is a plan view of the first embodiment.

FIG. 3 is a front view of the first embodiment.

FIG. 4 is a cross-sectional view taken along a line a in FIG.

FIG. 5 is a plan view of the second embodiment.

FIG. 6 is a plan view of the third embodiment.

FIG. 7 is a perspective view of a front spacer of the third embodiment.

FIG. 8 is a perspective view of a rear spacer of the third embodiment.

FIG. 9 is a perspective view of a conventional first technique.

FIG. 10 is a sectional view of a conventional second technique.

[Explanation of symbols]

1; Dust collector, 2; Recess, 3; Spacer, 31; Cylindrical spacer, 32; Trough spacer, 4; Slit, 5; Notch

Claims (8)

[Claims] 1. A dust collecting element in which a plurality of dust collecting plates (1) are arranged to face each other with a space therebetween, and a long spacer (3) having a recess (2) is formed along the longitudinal direction. hand,
A plurality of slits (4) having a width for receiving the thickness of each dust collecting plate (1) in the longitudinal direction of the spacer (3) and exposing each dust collecting plate (1) to the recess (2) are provided. A dust collecting element, characterized in that each dust collecting plate (1) is inserted into each slit (4) and is fixed to the recess (2) with an adhesive. 2. A notch (5) for locating the spacer (3) on the inner side of the dust collecting plate (1) is provided at the insertion portion of the slit (4) in the dust collecting plate (1). 1. The dust collecting element according to 1. 3. A dust collecting element according to claim 1 or 2, wherein the spacer (3) is a cylindrical spacer (31) surrounding the recess (2). 4. The spacer (3) is a trough-shaped spacer (32) which opens one side of the recess (2) outward along the longitudinal direction of the spacer (3). Dust collection element described. 5. The dust collecting element according to claim 3, wherein the cross-sectional shape of the spacer (3) is tapered on the windward side. 6. The dust collecting element according to claim 1, wherein the dust collecting plate (1) and the spacer (3) are made of a combustible material. 7. A method of manufacturing a dust collecting element in which a plurality of dust collecting plates (1) are arranged to face each other at intervals, and a long spacer (3) having a recess (2) along the longitudinal direction. And has a width in the longitudinal direction of the spacer (3) to accommodate the thickness of each dust collecting plate (1), and each dust collecting plate (1)
A plurality of slits (4) are provided to face the recess (2),
It is characterized in that each dust collecting plate (1) is inserted into each slit (4), and then a fluid adhesive is poured into the recess (2), and then the fluid adhesive is fixed. Manufacturing method of dust collecting element. 8. The method of manufacturing a dust collecting element according to claim 7, wherein the dust collecting plate (1) and the spacer (3) are made of a combustible material.